User guide

C-34
Compile-Time Options
These delays impede the simulation performance of the design
so after debugging you can remove these delays with this option.
Note:
The +nbaopt option removes all intra-assignment delays in all
the nonblocking assignment statements in the design, not just the
#1 delays.
+old_iopath
By default VCS replaces negative module path delays in SDF files
with a 0 delay. If you include this option, VCS replaces these
negative delays with the delay specified in a module’s specify
block.
-negdelay
Enables the use of negative values in IOPATH and
INTERCONNECT entries in SDF files.
+transport_int_delays
Enables transport delays for delays on nets with a delay
backannotated from an INTERCONNECT entry in an SDF file.
The default is inertial delays. See “Transport and Inertial Delays”
on page 12-2, “Enabling Transport Delays” on page 12-7 and
“INTERCONNECT Delays” on page 13-32.
+transport_path_delays
Enables transport delays for module path delays. See “Transport
and Inertial Delays” on page 12-2 and “Enabling Transport
Delays” on page 12-7".